<template>
	<view class="app-page">
		<view v-if="loading != 'success'" class="loading-wrap">
			<tm-skeleton model="listAvatr"></tm-skeleton>
			<tm-skeleton model="listAvatr"></tm-skeleton>
			<tm-skeleton model="listAvatr"></tm-skeleton>
			<tm-skeleton model="listAvatr"></tm-skeleton>
		</view>
		<block v-else>
			<view class="empty" v-if="dataList.length == 0"><tm-empty icon="icon-shiliangzhinengduixiang-" label="该分类下暂无文章"></tm-empty></view>
			<block v-else>
				<block v-for="(article, index) in dataList" :key="article.createTime">
					<!-- 文章卡片 -->
					<tm-translate animation-name="fadeUp" :wait="calcAniWait(index)"><article-card :article="article" @on-click="fnToArticleDetail"></article-card></tm-translate>
				</block>
				<view class="load-text">{{ loadMoreText }}</view>
			</block>

			<tm-flotbutton @click="fnToTopPage" color="light-blue" size="m" icon="icon-angle-up"></tm-flotbutton>
		</block>
	</view>
</template>

<script>
	import tmSkeleton from '@/tm-vuetify/components/tm-skeleton/tm-skeleton.vue';
	import tmTranslate from '@/tm-vuetify/components/tm-translate/tm-translate.vue';
	import tmFlotbutton from '@/tm-vuetify/components/tm-flotbutton/tm-flotbutton.vue';
	import tmEmpty from '@/tm-vuetify/components/tm-empty/tm-empty.vue';
	import ArticleCard from '@/components/article-card/article-card.vue';
	export default {
		components: {
			tmSkeleton,
			tmTranslate,
			tmFlotbutton,
			tmEmpty,
			ArticleCard
		},
		data() {
			return {
				loading: 'loading',
				queryParams: {
					size: 10,
					page: 0
				},
				slug: '',
				pageTitle: '加载中...',
				result: null,
				dataList: [],
				isLoadMore: false,
				loadMoreText: ''
			};
		},

		onLoad(e) {
			this.slug = e.slug;
			this.pageTitle = e.name;
			this.fnGetData();
		},
		onPullDownRefresh() {
			this.isLoadMore = false;
			this.queryParams.page = 0;
			this.fnGetData();
		},
		onReachBottom(e) {
			if (this.result.hasNext) {
				this.queryParams.page += 1;
				this.isLoadMore = true;
				this.fnGetData();
			} else {
				uni.showToast({
					icon: 'none',
					title: '没有更多数据了'
				});
			}
		},
		methods: {
			fnGetData() {
				// uni.showLoading({
				// 	mask: true,
				// 	title: '加载中...'
				// });
				// 设置状态为加载中
				if (!this.isLoadMore) {
					this.loading = 'loading';
				}
				this.loadMoreText = '加载中...';
				this.$httpApi
					.getCategoryPostList(this.slug, this.queryParams)
					.then(res => {
						this.fnSetPageTitle(`分类：${this.pageTitle} （共${res.data.total}篇）`);
						this.result = res.data;
						if (this.isLoadMore) {
							this.dataList = this.dataList.concat(res.data.content);
						} else {
							this.dataList = res.data.content;
						}
						this.loadMoreText = res.data.hasNext ? '上拉加载更多' : '呜呜，没有更多数据啦~';
						setTimeout(() => {
							this.loading = 'success';
						}, 500);
					})
					.catch(err => {
						console.error(err);
						this.loading = 'error';
						this.loadMoreText = '加载失败，请下拉刷新！';
					})
					.finally(() => {
						setTimeout(() => {
							uni.hideLoading();
							uni.stopPullDownRefresh();
						}, 500);
					});
			},
			//跳转文章详情
			fnToArticleDetail(article) {
				uni.navigateTo({
					url: '/pagesA/article-detail/article-detail?articleId=' + article.id,
					animationType: 'slide-in-right'
				});
			}
		}
	};
</script>

<style lang="scss">
	.app-page {
		width: 100vw;
		min-height: 100vh;
		display: flex;
		flex-direction: column;
		padding: 24rpx 0;
		background-color: #fafafd;
	}

	.loading-wrap {
		padding: 0 24rpx;
		min-height: 100vh;
	}

	.empty {
		height: 60vh;
		display: flex;
		align-items: center;
		justify-content: center;
	}
</style>